(x²-y²/xy)÷(x+y)· (x/x-y)³【化简】
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
[x(x²y²-xy)-y(x²-x³y)]÷3x²y
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
(xy-x²)·x²分之x-y
化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-
化简(y根号x+x根号y)/(xy-y²)-(x+根号xy+y)/(x根号x-y根号y).
化简:[(x×根号x+x×根号y)/(xy-y²)]-[(x+根号下xy+y)/(x×根号x-y×根号y)]
将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
化简:(x²+y²/x-y)-(2xy/x-y)
(x+y)(x²-xy+y²)—xy(x+y)因式分解